I think that issue is due a codec configuration...
See what codec you are using between CCM and router. It must be same. I set up a trunk between CCM and Asterisk and calls are only attempted, but not completing, a long time ago, i see that the codec used was g729, differ than the g711 used for SIP trunking on release 4... and Asterisk
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The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...